Compression ratio
Ratio of the volume of a combustion chamber from its largest capacity to its smallest capacity / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Compression ratio?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
For compression ratio in data compression, see Data compression ratio.
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values.
This article needs additional citations for verification. (July 2019) |
A fundamental specification for such engines, it is measured two ways: the static compression ratio, calculated based on the relative volumes of the combustion chamber and the cylinder when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke.[1]
The dynamic compression ratio is a more advanced calculation which also takes into account gases entering and exiting the cylinder during the compression phase.